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    CVE-2018-5732

    Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a response containing a specially constructed options section. Affects ISC DHCP versions 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0

    Published:Feb 28, 2018
    Last Modified:Nov 21, 2024
    EPS:Oct 9, 2019
    EPSS Score:0.01756
    CVSS Score:7.5

    Affected Products

    Vendor
    Isc
    Product
    Dhcp
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Related CVEs

    CVE-2022-2928 (CVSS 6.5) — In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup()…
    CVE-2022-2929 (CVSS 6.5) — In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending…
    CVE-2021-25217 (CVSS 7.4) — In ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16, ISC DHCP 4.4.0 -> 4.4.2 (Other branches of ISC DHCP (i.e., releases in …
    CVE-2018-5733 (CVSS 7.5) — A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP serv…
    CVE-2017-3144 (CVSS 7.5) — A vulnerability stemming from failure to properly clean up closed OMAPI connections can lead to exhaustion of …
    CVE-2016-2774 (CVSS 5.9) — ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the number of concurrent …
    CVE-2015-8605 (CVSS 6.5) — ISC DHCP 4.x before 4.1-ESV-R12-P1, 4.2.x, and 4.3.x before 4.3.3-P1 allows remote attackers to cause a denial…
    CVE-2013-2494 (CVSS 4.9) — libdns in ISC DHCP 4.2.x before 4.2.5-P1 allows remote name servers to cause a denial of service (memory consu…
    CVE-2012-3955 (CVSS 7.1) — ISC DHCP 4.1.x before 4.1-ESV-R7 and 4.2.x before 4.2.4-P2 allows remote attackers to cause a denial of servic…
    CVE-2012-3954 (CVSS 3.3) — Multiple memory leaks in ISC DHCP 4.1.x and 4.2.x before 4.2.4-P1 and 4.1-ESV before 4.1-ESV-R6 allow remote a…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High